Pipe wrapping machine



Feb. 28, 1933.

K. H. BURTO N ET AL PIPE WRAPPING MACHINE Filed May 10, 1930Sheets-Sheet INVENTORS my 0 am a a M 0 .mm w M A I Feb. 23, 1933. K H,BUR-5N ET AL 1,899,850

PIPE WRAPPING MACHINE 2 Sheets-Sheet 2 Filed May l0. 1950 INVENTORSPatented Feb. 28, 1933 UNITED STATES PATENT OFFICE" KELLIS H. BURTON ANDHERMAN KRAMER, OF TULSA, OKLAHOMA, ASSIGNORS, BY MESNE ASSIGNMENTS, TOTHE PHILIP CAREY MANUFACTURING COMPANY, A GOR- PORATION OF OHIO PIPEWRAPPING MACHINE Application filed Kay 10,

Our invention relates to wrapping -machines and more particularly toapparatus of that character for wrapping pipes and like cylindricalobjects.

Before laying steel conduits in the ground, a coat of asphalt or likepreservative is commonly applied to the outer surface of the pipe toprevent deterioration thereof. Due to the inherent drawing'qualities ofthe soil, the preservative tends to become disengaged from the pipe andadheres to the soil. In order to retain the coating of asphalt inintimate contact with the conduit, a layer of paper, preferably in theform of strips, is wound around the pipe. This operation has heretofore,been ordinarily accomplished in factories by rotating the pipe to windpaper thereon from a spool supported in stationary brackets. I

The principal object of this invention is to provide an apparatus forwinding paper around a stationary pipe in the field, from a rollsupported on a frame rotated around the pipe.

. A further object of our invention is to provide means for readilyadjusting the amount of lap applied to the successive turns of coveringmaterial when wound spirally around a conduit.

Other objects of the invention are to provide means fOr'preVentingadhesion of the traction rollers tothe preservative coating, includingmeans for a plying additional covering to the portion 0 the conduitrequiring a heavy covering.

In accomplishing these and other objects.

of our invention we have provided improved details of structure the.preferred form of which is illustrated in the accompanying drawings,wherein:

Fig. 1 is a detail perspective view of a pipe wrapping machine embodyingour invention, mounted in operable position on a pipe-line.

Fig. 2 is a central vertical-section of the device mounted on a conduit,in pipe wrapping relation.

Fig. 3 is a plan view of the wrappin machine, parts being shown insection to tter illustrate their structure.

Fig. 4 is a front elevational view of the 1930. serial No. 451,227.

device mounted on a conduit illustrated in cross-section. I

Referring more in detail to the drawings: 1 desi nates a pipelinepreferably su ported ahove the ground in a position to e coated with apreservative and wrap ed with paper prior to being permanently la1d inthe ground.

Mounted on the pipe or conduit is a pipewrapping machine 2 includingspaced frame members 3 and 4, havin horizontal portions 5 and inclinedlegs 6, t e members 3 and 4 being preferably formed of angle bars comprising flanges 7 and 8 directed outwardly and downwardly respectively.

Cross bars 9 and 10, fixed to the flanges 7 of the horizontal portions 5by bolts 11, space the frame members and are provided with aligningbearing portions 12 and 13 respectively for a purpose presentlydescribed.

Extended downwardly at right angles to the frame members and from theforward ends thereof are legs 14 and'15, also preferably constructed ofangle bars, including inner flanges 16 fixed to the frame members byrivets. 17, and outwardly directed flan es 18 in alignment with theflanges 7 of t e frame members.

Rotatably supported between the lower I ends of the downwardly extendinglegs 14 the rollers in adjusted relation to the shaft,

the distance for spacing the rollers depend:

ing on the diameter of the conduit being wrapped.

In like manner a threaded axle 30, mounted f s between the inclined rearlegs 6, in bearings 31, carries spaced rollers 32, identical inconstruction to the rollers 22 previously described. V

The frame and rollers above described provide a truck adapted to belongitudinally portions and moved on the pipeline and to rotatably support the wrapping mechanism 33, including a yoke frame 34, provided withan arch 35 extending upwardly between the longitudinal the frame member,and fixed tothe cross bar 9 and to the inner flange 8 by bolts 36.

Attaohdd' to the opposite faces of the yoke frameare duplicate yokeplates 37, having neck portions 38 formed complementary to the arch ofthe frame, and downwardly 4 extending arcuate arms 39 and 40, spaced atof the yoke members over a conduit.

their lower ends by blocks 41 and 42 secured thereto by bolts 43. Lowerportions 44 of the blocks are extended below the ends of the arms 39 andto mount spaced bars 45 and 46, normally securedthereto by bolts 47, butdetachable from the arm to permit mounting With the construction abovedescrlbed, a

substantially circular opening 48 is formed in the yoke member forreceiving a rotatable carrier ring 49, including a relatively thin rimportion 50, adapted to be mounted in grooved rollers 51 interposedbetween the oke plates and between the spaced bars on Its 52 in anequally spaced, annular series surrounding the axis of the rotatingring.

A removable section 53, having slots 54' for receiving tongues 55 on thecarrier ring, is provided for admitting the conduit into the carrierring when mountin the wrapping machine on the conduit, olts 56 ex-;tended through aligning openings in the tongues of the ring and roovedends of the 2 may removed jointly therewith when mountlng the machine ona conduit.

Meshing with the ring gear 57 is an idler gear 61 rotatably mounted on abolt 62, extended through a concentric openin 63 in the gear, throughopenings 64 in t e neck 50" port ons of the yoke plates, and through a sacmg collar 65 mounted between the plates.

enlarged portion 66 of the bolt forms a shoulder 67 for seating againstthe front yoke plate, and a nut 68- is threaded on the bolt to securelymount the idler gear inalignment with the ring gear.

J ournalled in the bearing portions 12 and 13 of the plates 9 and 10 isa shaft 69, and

keyed to the shaft between said bearing portlons 1s a driving pinion 70meshing with the;

idler gear 61. Secured to the forward end of the shaft 69, by a key 71,is a bevel gear 72 adapted to mesh with a bevel pinion 73 fixed to atransverse 'shaft 74, journalled in bearings 75 and 76 secured to theouter ends of the frame members 3 and 4 by bolts 77. The shaft 74 may berotated from either end by a crank 78 removably mounted on squared endportions 79 of the shaft.

- From the foregoing it will be apparent that l by rotating the crank,the ring gear is rotated at reduced speed around the conduit and thisreduced rotary movement is utilized for winding a strip of coveringmaterial around the conduit from a spooling mechanism 80, supported onthe ring gear by a bracket 81, having a shank 82 extended through anopening 83 in the gear and threaded on its outer end for receiving a nut84.

mentary socket 86 of a spool head 87, on the inner end of a tubularshaft 88, rotatably supporting a roll of covering material or paper 89.

The supporting bracket is further provided with an arcuate slot 90 forreceiving a curved arm 91, pivotally attached by a pin 92 between ears93 integral with the head of the spool.

A series of openings 94 in the curved arm are adapted for selectivelyreceiving a pm.

95 extended through aligning openings in the bracket member and throughone of the openings in the curved arm, so that the spool ofwrapping'material may be adjusted in angular relation to the ring gearto effect a greater or less amount of lap when winding material spirallyaround the conduit.

Means for applying tension to the roll of wrapping material to preventunrestrained rotation thereof, includes a bar 96, having a head 97 onone end slidably movable on a shaft 98 integral with the head of thespool, a spring 99 being attached to the spool and to the head portionfor normally urging the bar into engagement with the paper. The oppositeend of the bar terminates in an inwardly depending flange 100, andattached thereto is a cord or the like 101 running over a pulley 102,mounted in the end of the tubular pulley shaft, the inner end of thecord Provided on.the rear end of the bracket is a ball portion 85 forseating in a complebeing attached to a spring 103 anchored said tubularportion.

In orderto simultaneously move the wrap; p'ng machine longitudinally onthe conduit while rotating the carrier ring, a primary driving sprocket104 is fixed on the shaft 74 in aligning relation with a sprocket 105,keyed to a shaft 106, journalled in bearings 107, secured to the facingflange 18 of the angle members 14 and 15 by bolts 108, a chain belt 109running over the sprockets 104 and 105. Lateral movement of the shafts74 and- 106 is prevented by collars 110 fixed to said shafts adjacentthe inner faces of the bearings.

j A smaller sprocket 111, further secured to the shaft 106 adjacent thesprocket 105, is

connected by a chain belt 112 with a final tion rollers to thepreservative on the conduit,

especially during warm weather, we have pro" vided means, nowto bedescribed, for laying a track of paper or the like on the conduit aheadof the traction rollers, the track further serving as additionalprotection for the preservative when throwing dirt on the conduit tofill the ditch.

Secured to the lower ends of the facing flanges 18 of the legs 14 and15, by rivets or the like 114, are bracket members 115 having forwardlydirected lateral ears 116 for pivotally receiving therebetween the arms117 and 118 mounted on aligning bolts 119.

Rotatable on a shaft 120 extended through aligningopenings on the outerends of the arms 117 and 118, is a spool 121 adapted to receive a rollof track-laymg material 122.

A pipe wrapping machine constructed as described is assembled on aconduit by removing the bars 45 and 46 and the connected sections of thedriving gear and carrier ring. With. the traction and trailer rollerssupporting the machine on the conduit, the removable sections are againsecured to the carrier ring and the bars 45 and 46 are again attached tothe yoke, the outer ends of the wra ping or track-laying rollers aresecured to t e conduit and the crank is mounted on either end of theshaft 7 4 to suit the convenience of the operator.

Upon rotation of the crank, the machine is slowly drawn along the pipeby the traction rollers running over the track laid from the roll 122.Simultaneously the carrier ring is rotated through the train of driving,idler and driven sprockets, carrying therewith the roll of wrappingmaterial.

If it is found, upon winding the conduit, that an insuflicient amount oflap is produced in the spiral windings, the pin 95 is inserted throughthe next upper opening 94 in the curved arm to effect a greaterinclination of the wraping roll in relation to the carrier ring. Todecrease the amount of lap, it will be obvious that a reverse movementof the roll is necessary. I

If the coating of preservative is sufficiently firm to prevent adherenceof the traction rollers thereto, the track-laying apparatus may bereadily detached from the machine by removing the bolts 119. 4

What we claim and desire to secure by Let- I ters Patent is:

1. In a machine for wrapping conduit, a

the conduit, a wrapping roll carrier on the frame, means for supportinga rollof tracklaying material on t 0 frame, and means for simultaneouslymoving the carrier longitudinally and rotatably on the conduit to windthe wrapping material spirally around the, conduit and to lay a track ofmaterial on the conduit for the traction rollers.

ing the conduit, a spool pivotally mounted on the carrier, means forsupporting a roll of track-laying material on the frame, means forrotating the carrier in the frame to wind material from the spool aroundthe conduit, and means for moving the frame longitudinally for laying atrack of material on the conduit for the traction rollers.

3. In a machine for wrapping conduit, a frame including tractionrollers, a carrier rotatably mounted on the frame and surrounding theconduit, a spool pivotally mounted on the carrier, means for adjustingthe spool in angular relation with the carrier, means for supporting aroll of track-laying material on the frame, means for simultaneouslyrotating the carrier in the frame to wind material from the spool aroundthe conduit, and for moving the frame longitudinally for laying a trackof material on the conduit for the traction rollers.

4'. In a machine for wrapping conduit, a frame, traction wheels arrangedin adjustable pairs for supporting said frame on a conduit, a carrierrotatably mounted in said frame and surrounding said conduit, a spool oftrack laying material carried by said frame in advance of said tractionwheels and adapted to lay a track thereunder longitudi-' conduit, meanson the frame for supporting a roll of covering material and arranged fordepositing thecovering material in a long1- 'tudinal strip on theconduit ahead of said traction means whereby saidiraction means operateson said; covering material, and means supported on the frame carrying asecond roll of covering material for lapping the longitudinal strip ofcovering material.

6. In a machine for wrapping conduit, a frame, traction means supportingthe frame and arranged to'travel on the conduit, means on the frame forsupporting a roll of covering material and arranged for depositing thecovering material on the conduit ahead of said traction means wherebysaid traction means operates on said covering material, and

means supported on the frame carrying av second roll of coveringmaterial for lapping said strip of covering material.

w 7. In a machine for wrapping conduit, a frame, traction meanssupporting the frame and arranged to travel on the conduit, and means onthe frame for supporting a roll of covering material and arranged fordepositing the covering material in a longitudinal strip on the conduitahead of said traction means, whereby said traction means operates onsaid covering material.

. 8. In a machine for wrapping conduit, 21

frame, traction means supporting the frame, a carrier rotatably mountedon the frame for supporting a roll of covering material, means on theframe for supportin a roll of track laying material, and means oroperating the traction means to move the frame longitudinally of theconduit for depositing the track material on the conduit for saidtraction means and for simultaneously rotating said carrier for wrappingthe covering material around the conduit.

' 9. In a machine for wrapping conduit, a frame, traction meanssupporting the frame and movable along .the conduit, a carrier on theframe for supporting aroll of wrapping material, means for sim taneouslyactuating saidtraction means and rotating said carrier for winding thewrapping material spirally around the conduit, and means associated withthe frame forlayinga track for the traction means progressively with thewinding of said wrapping material.

In testimony whereof we aflix our signatures.

. KELLIS H. BURTON. I HERMAN KRAMER.

